Year Number of Firms 1992-01-01 144 1997-01-01 223 2002-01-01 205 2003-01-01 241 2004-01-01 228 2005-01-01 210 2006-01-01 257 2007-01-01 266 2008-01-01 300 2009-01-01 303 2010-01-01 326 2011-01-01 379 2012-01-01 407 2013-01-01 395 2014-01-01 383 2015-01-01 382 2016-01-01 386